<template>
  <div class="container">
    <div class="app-container">
      <!-- 展示树形结构 -->
      <el-tree :expand-on-click-node="false" default-expand-all :data="depts" :props="defaultProps">
        <!-- 节点结构 -->
        <!-- v-slot="{ node, data }" 只能作用在template -->
        <template v-slot="{ data }">
          <el-row style="width:100%;height:40px" type="flex" justify="space-between" align="middle">
            <el-col>{{ data.name }}</el-col>
            <el-col :span="4">
              <span class="tree-manager">{{ data.levelName }}</span>
              <!-- $event 实参 表示类型 -->
              <el-dropdown @command="operateDept($event, data.id,data.name)">
                <!-- 显示区域内容 -->
                <span class="el-dropdown-link">
                  操作<i class="el-icon-arrow-down el-icon--right" />
                </span>
                <!-- 下拉菜单选项 -->
                <el-dropdown-menu slot="dropdown">
                  <el-dropdown-item command="add">添加子部门</el-dropdown-item>
                  <el-dropdown-item command="update">修改部门</el-dropdown-item>
                  <el-dropdown-item command="del">删除部门</el-dropdown-item>
                </el-dropdown-menu>
              </el-dropdown>
            </el-col>
          </el-row>
        </template>
      </el-tree>
    </div>
    <!-- 放置弹层 -->

      <div>
        <el-dialog   :visible.sync="showUpdateDialog"   title="修改部门信息">
          <el-form  :model="formData" :rules="rules" size="medium" label-width="100px"
                   label-position="left">
            <el-form-item label="部门名称" prop="name">
              <el-input v-model="formData.name" placeholder="请输入部门名称" readonly :disabled='true' clearable
                       :style="{width: '100%'}"></el-input>
            </el-form-item>
            <el-form-item label="部门人数" prop="employeeNumber">
              <el-input v-model="formData.employeeNumber" placeholder="请输入部门人数" clearable
                        :style="{width: '100%'}"></el-input>
            </el-form-item>
            <el-form-item label="部门密码" prop="password">
              <el-input v-model="formData.password" placeholder="请输入部门密码" clearable prefix-icon='el-icon-key'
                        show-password :style="{width: '100%'}"></el-input>
            </el-form-item>
          </el-form>
          <div slot="footer">
            <el-button @click="close">取消</el-button>
            <el-button type="primary" @click="handleConfirm">确定</el-button>
          </div>
        </el-dialog>
      </div>



    <!-- 表示会接受子组件的事件  update:showDialog, 值 => 属性 -->
    <!-- ref 可以获取dom实例对象 ref也可以获取自定义组件的实例对象 -->
    <add-dept ref="addDept" :currentDepartmentName="currentDepartmentName" :current-node-id="currentNodeId" :show-dialog.sync="showDialog" @updateDepartment="getDepartment" />
  </div>
</template>
<script>
import { getDepartment, delDepartment } from '@/api/department'
import { transListToTreeData } from '@/utils'
import AddDept from './components/add-dept.vue'

import {getDepartmentDetailToUpdate,updateDepartmentDetail } from '@/api/department'
export default {
  name: 'Department',
  components: { AddDept },
  data() {
    return {
      formData: {
        name: null,
        employeeNumber: null,
        password: null,
      },
      rules: {
        name: [{
          required: true,
          message: '请输入部门名称',
          trigger: 'blur'
        }],
        employeeNumber: [{
          required: true,
          message: '请输入部门人数',
          trigger: 'blur'
        }],
        password: [{
          required: true,
          message: '请输入部门密码',
          trigger: 'blur'
        }],
      },
      currentNodeId: null, // 存储当前点击的id
      currentDepartmentName: null,
      showDialog: false, // 控制弹层的显示和隐藏
      showUpdateDialog: false, // 控制弹层的显示和隐藏
      depts: [], // 数据属性
      defaultProps: {
        label: 'name', // 要显示的字段的名字
        children: 'children' // 读取子节点的字段名
      }
    }
  },
  created() {
    this.getDepartment() // 调用获取数据的接口
  },
  methods: {
    async getDepartmentDetailToUpdate(departmentName){
      const data = {  name:departmentName}
      this.formData = await getDepartmentDetailToUpdate(data)
    },
    async updateDepartmentDetail(formData){

      await updateDepartmentDetail(formData)
      this.$message.success('修改成功！')
    },
    onOpen() {this.showUpdateDialog=true;
    },
    close() {
      this.showUpdateDialog=false;
      this.formData = {
        name: null,
        employeeNumber: null,
        password: null,
      }
    },
    handleConfirm() {
      this.updateDepartmentDetail(this.formData)
      this.showUpdateDialog=false;
      this.formData = {
        name: null,
        employeeNumber: null,
        password: null,
      }

    },
    // 封装好方法
    async getDepartment() {
      const result = await getDepartment()
      this.depts = transListToTreeData(result, 0)
    },
    // 操作部门方法
    operateDept(type, id,name) {
      if (type === 'add') {
        // 添加子部门
        this.showDialog = true // 显示弹层
        this.currentNodeId = id

        // console.log(this.currentDepartmentName)
      } else if(type === 'update') {
        this.onOpen()
        this.showUpdateDialog = true // 显示弹层
        this.currentDepartmentName = name
        this.getDepartmentDetailToUpdate(name)

      } else
      {
        // 删除部门
        this.$confirm('您确认要删除该部门吗').then(async() => {
          await delDepartment(id)
          // 提示消息
          this.$message.success('删除部门成功')
          this.getDepartment()
        })
      }
    }
  }
}
</script>
<style scoped>
.app-container {
  padding: 30px 140px;
  font-size: 14px;
}
.tree-manager {
  width: 50px;
  display: inline-block;
  margin: 10px;
}
</style>
